CN1171803C - Sewage treating agent - Google Patents
Sewage treating agent Download PDFInfo
- Publication number
- CN1171803C CN1171803C CNB011333839A CN01133383A CN1171803C CN 1171803 C CN1171803 C CN 1171803C CN B011333839 A CNB011333839 A CN B011333839A CN 01133383 A CN01133383 A CN 01133383A CN 1171803 C CN1171803 C CN 1171803C
- Authority
- CN
- China
- Prior art keywords
- sewage
- accounts
- sulfate
- treating agent
- lithopone
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Separation Of Suspended Particles By Flocculating Agents (AREA)
Abstract
The present invention relates to a sewage treating agent belonging to the technical field of environmental protection and comprising Al<+++>, Fe <+++>, Mg <++>, a little Mn<2+> and lithopone, wherein Al<+++> accounts for 30 to 50%, Fe <+++> accounts for 10 to 30%, Mg <++> accounts for 30 to 50%, and a little Mn<2+> and the lithopone as the balance. The components are compounded by a general method, specifically a certain amount of water is added to aluminium sulfate, ferric sulfate, magnesium sulfate, manganese sulphate and the lithopone according to the compounding ratio and then are uniformly mixed at room temperature; then the mixture can be used after the aluminium sulfate, the ferric sulfate, the magnesium sulfate, the manganese sulphate and the lithopone are dissolved. The sewage treating agent has the advantages of broad application, high precipitation rate, good effluent water quality and low treating cost and has no corrosive action on steel structures. The medicament has no toxicity and pollution and has safe use. The sewage treating agent can also be widely used for treating various kinds of sewage in oil fields, coal mines, textile mills, printing and dyeing mills, etc. and can also be used for treating municipal sewage.
Description
Affiliated technical field
The invention belongs to environmental technology field.
Background technology
Chemical precipitation method extensively is used in sewage disposal, it be in waste water, add some chemical agent make it with waste water in pollutent generation chemical reaction, form the solid resultant of indissoluble, carry out solid-liquid separation then, thereby remove a kind of method of water pollutant.At present in some industries, as the medicament that black water, oil-containing wastewater, dyeing waste water, paper waste etc. are adopted, poor processing effect, settling velocity are slow, and medicament expense is higher, and some enterprise also causes the equipment heavy corrosion.
The colliery produces a large amount of black waters aborning, will be caused severe contamination as these water in time not handling.Existing black water treatment process adopts adding medicine to handle more, polyaddition aluminum chloride or calcium chloride and polyacrylamide coupling in black water, and precipitation is administered.Owing to introduced chlorion in a large number, thereby caused the equipment heavy corrosion.
Oil recovery factory, oil field recovered water is to come out from reservoir exploitation with crude oil, not only carry crude oil in the waste water, in the oil reservoir of High Temperature High Pressure, also flow to various salts and the gas in the stratum, in oil recovery process, carry out many suspended solidss again from the stratum, therefore, the characteristics of oil field extracted water are not only COD and oil-contg height, and the temperature height, the salinity height.Now dosing sedimentation and filtration methods that adopt are handled more, and dosing mostly is polymeric aluminum, and the ubiquity problem is that treatment effect is bad, and how the back adopts biochemical process to handle again.
Summary of the invention
In order to solve the existing used chemicals treatment weak effect of sewage disposal, problems such as settling velocity is slow, cost is high, equipment heavy corrosion, the invention provides a kind of high-level efficiency, low cost, the avirulent sewage-treating agent of wide, the no burn into of adaptation.
Sewage-treating agent of the present invention is Al-Fe-Mg compound, wherein Al
3+Account for 30～50%, Fe
3+Account for 10～30%, Mg
2+Account for 30～50%, also have a spot of Mn
2+And zinc sulfide white, Mn
2+Can be MnSO
4, account for 6%; " zinc sulfide white " accounts for 4%, Al
3+Can Al
2(SO
4)
3Tai-Ace S 150 adds; Fe
3+Can ferric sulfate Fe
2(SO
4)
3Add; Mg
2+Can add by sal epsom; " zinc sulfide white " has another name called lithopone, is the mixture of zinc sulphide and barium sulfate, and molecular formula is: ZnS+BaSO
4Compound method is to adopt the general method uniform mixing to form.
(about 10 minutes) the whole dissolvings that at room temperature stir can be used.Use temperature is at 4 ℃～50 ℃.
The ultimate principle that the present invention disposes of sewage is that the colloid in the sewage is destroyed.Contain a large amount of suspended substances, emulsification etc. in the sewage and be the colloidal state existence.Use medicament of the present invention to fall colloid surface charge neutralization in the sewage, thereby destroy colloidal suspended substance and emulsification etc., make the suspended substance rapid precipitation.
The present invention has following advantage:
1. use range is wide, and sedimentation effect is good, and effluent quality is good, and processing cost is low.
This water conditioner is applicable to black water, oily(waste)water, dyeing waste water, paper waste, chemical industry and municipal effluent etc.After adding this medicament in the sewage, suspended substance flocculates at once, and the alumen ustum of generation is big, and precipitation is quick, the efficient height, and floc sedimentation intensity height, hydrophobic performance is good, is beneficial to press filtration.The filter cake after pressure filtration water ratio is low, and quality is good.The medicament expense of handling every cube of this medicament of sewage only is about 60 percent of other medicament expenses.
2. non-corrosiveness.
The pH value of solution is similar to neutrality 6.5～8.5 after this chemicals treatment, does not contain Cl
-Ion after the treating water reuse, can be protected the steel construction in the aqueous systems effectively, makes its corrosion, therefore can reduce a large amount of equipment maintenance costs every year.
3. nontoxicity
This sewage disposal medicament purity height, inclusion-free, no dust.The aqueous solution is as clear as crystal.This medicament nontoxicity does not have influence to the operator, handles problems such as back water non-secondary pollution.
Embodiment
Add Tai-Ace S 150 40g (purity is more than 95%) ferric sulfate (purity is more than 95%) 10g according to 1 premium on currency, sal epsom (purity is more than 95%) 40g, manganous sulfate (purity is more than 95%) 6g, zinc sulfide white (more than the 90%) 4g that Tie Shan chemical plant, Lvshun, Dalian produces, adopt steel body, the anticorrosion dispensing canister of glass reinforced plastic to prepare sewage-treating agent of the present invention, dispensing canister diameter phi=1.6m, high h=1.8m, volume V=3.6m
3, the drug concentration of preparation is 2.8%.
The top sewage-treating agent of embodiment 1 usefulness carries out Processing Test to certain pit coal muddy water, and this black water is the middle part water in the φ 24m of the coal separating plant rake formula concentration basin.Black water is squeezed in the φ 8m thickner, added sewage-treating agent of the present invention in the pipeline of squeezing into, the black water after the dosing precipitates in φ 8m concentration basin.The post precipitation supernatant liquor overflows to clean water basin, is back to coal washing.The post precipitation flocs unit is got to belt filter press with surge pump and is dewatered.Test adopts the 4Ps water pump to beat black water, and flow is 70m
3/ h, adding treatment agent dominant discharge of the present invention is 0.7-0.8m
3/ h, test once moves 8～12 hours, handles black water water yield 690m
3Spend treatment agent 200kg of the present invention, promptly every cubic metre of black water is with this treatment agent 0.013kg.The experimental observation flocculating effect is good, and supernatant water is clear, can be back to coal washing.Flocs unit more greatly, stronger.Adopt the belt filter press press filtration, about 3～5cm is thick for filter cake, and water ratio is lower.Operation is 20 days continuously, and test-results sees the following form:
| Project | PH | SS(mg/L) | COD(mg/L) |
| The former water sample of black water | 8.0 | 115000 | 16814 |
| Handle the back clear water | 7.2 | 93 | 87 |
Embodiment 2 certain oil recovery factory's waste water adopt sewage-treating agent of the present invention to handle, and result is as shown in the table:
| Project | PH | SS(mg/L) | COD(mg/L) | Oil (mg/L) |
| The former water sample in oil field | 7.5 | 144.2 | 890 | 334 |
| Clear water sample behind the coagulant precipitation | 7.2 | 58 | 64 | 4.89 |
Claims (2)
1. sewage-treating agent, it is characterized in that this treatment agent is to be formed by Tai-Ace S 150, ferric sulfate, sal epsom and a small amount of manganous sulfate and zinc sulfide white mixed preparing, its weight proportion is: with 1 premium on currency is benchmark, Tai-Ace S 150 accounts for 30-50%, ferric sulfate accounts for 10-30%, sal epsom accounts for 30-50%, and manganous sulfate accounts for 6%, and zinc sulfide white accounts for 4%.
2. sewage-treating agent according to claim 1 is characterized in that the preparation according to qualifications of described this treatment agent, adds Tai-Ace S 150 40 grams of purity more than 95% according to 1 premium on currency, ferric sulfate 10 grams, sal epsom 40 grams, manganous sulfate 6 grams, zinc sulfide white 4 grams more than 90%, uniform mixing reaches whole dissolvings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB011333839A CN1171803C (en) | 2001-10-31 | 2001-10-31 | Sewage treating agent |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB011333839A CN1171803C (en) | 2001-10-31 | 2001-10-31 | Sewage treating agent |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1344688A CN1344688A (en) | 2002-04-17 |
| CN1171803C true CN1171803C (en) | 2004-10-20 |
Family
ID=4671766
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB011333839A Expired - Fee Related CN1171803C (en) | 2001-10-31 | 2001-10-31 | Sewage treating agent |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1171803C (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101654296B (en) * | 2009-09-21 | 2011-11-16 | 中建商品混凝土有限公司 | Coagulant for treating waste slurry in concrete stirring station sedimentation basin |
| CN102616906B (en) * | 2012-04-05 | 2013-05-08 | 中南大学 | Coal mine wastewater purifying agent and purification process |
| CN102774940B (en) * | 2012-07-18 | 2013-12-11 | 常州大学 | Preparation method of flocculant for removing low-temperature low-turbidity phosphorous wastewater |
| CN104150574B (en) * | 2014-07-04 | 2015-10-28 | 安徽三环水泵有限责任公司 | A kind of one-level materialization enhanced coagulation agent of coal mine sewage and treatment process thereof |
| CN105060367A (en) * | 2015-08-06 | 2015-11-18 | 马鞍山市顺达环保设备有限公司 | Sewage processing agent |
| CN105645546B (en) * | 2016-03-30 | 2018-11-13 | 南京工业大学 | Efficient coagulant special for emulsified oil wastewater and preparation method thereof |
-
2001
- 2001-10-31 CN CNB011333839A patent/CN1171803C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1344688A (en) | 2002-04-17 |
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| CF01 | Termination of patent right due to non-payment of annual fee |